[U-Boot] Fwd: [PATCH v2 0/5] Add multi-chips support for NAND, FSL-UPM and TQM8548

[Wolfgang Grandegger]

arun sharma wrote:
>> * Index: u-boot/drivers/mtd/nand/fsl_upm.c
> *>* ===================================================================
> *>* --- u-boot.orig/drivers/mtd/nand/fsl_upm.c
> *>* +++ u-boot/drivers/mtd/nand/fsl_upm.c
> *>* @@ -90,8 +90,11 @@ static void fun_cmd_ctrl(struct mtd_info
> *>*  	mar = cmd << (32 - fun->width);
> *>*  	io_addr = fun->upm.io_addr;
> *>*  #if CONFIG_SYS_NAND_MAX_CHIPS > 1
> *>* -	if (fun->chip_nr > 0)
> *>* +	if (fun->chip_nr > 0) {
> *>*  		io_addr += fun->chip_offset * fun->chip_nr;
> *>* +		if (fun->upm_mar_chip_offset)
> *>* +			mar |= fun->upm_mar_chip_offset * fun->chip_nr;
> *>* +	}
> *
> above patch is not suitable for 832x becuase mar register has only 26
> bit (6 bit are resrved)
> what should be done

Simply do not define fun->upm_mar_chip_offset in your BSP code. It is
used on the TQM8548 modules to driver some board-specific chip select
logic. Anyhow, do you need to support a multi-chip (multi-die) device all?

Wolfgang.